places = ['Chengdu', 'Jian', 'Beijing', 'Shenzhen', 'Zhengzhou']
print(places)
print(sorted(places))
print(places)
print(sorted(places,reverse=True))
print(places)
places.reverse()
print(places)
places.reverse()
print(places)
places.sort()
print(places)
places.sort(reverse=True)
print(places)